WS-AP21 Specifications ● Rated voltage: 220-240v with CE rating ● Orbit diameter Size: 21mm ● Thread size: 5/16" ● Backing plate size: 150mm (6") ● Polishing pad size: 150mm (6") ● Variable speed: 1800-4800 OPM (Orbits Per Minute) ● Net weight: 2.2kgs ● Accessories：Ventilated 150mm (6") Backing Plates.Rubberized palm grip.2×Spare Carbon Brushes. Feature ● Using perfect solution for polishing paintwork, surface finishing, waxing and descaling ● Variable speed and slow smooth start-up ● Constant speed function: infinitely variable speed between 2100-5000 rpm ensures work at the right speed ● Externally accessible brushes for greater serviceability and longer motor life ● Soft grip for comfortable use